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AS1111

Part Number	AS1111
Manufacturer	ams
Description	Low-Dropout LED Drivers
Published	Feb 19, 2016
Detailed Description	AS1111 Low–Dropout LED Drivers General Description The AS1111A/AS1111B/AS1111C are LED drivers designed to match curre...
Datasheet	AS1111 PDF File

Overview

AS1111 Low–Dropout LED Drivers General Description The AS1111A/AS1111B/AS1111C are LED drivers designed to match current source bias for any color LED, including white and blue.
The devices can drive up to 4 high-current LEDs, and the LED current is programmable using an external resistor (RSET).
The AS1111A LED currents are 460 x ISET (per LED, typ) at an LED cathode voltage (VSAT) of 150mV and 650 x ISET (typ) at a VSAT of 1V, where ISET is the current through RSET connected to pin CTRL.
The AS1111B & AS1111C LED currents are 230 x ISET (per LED, typ) at a VSAT of 150mV and 325 x ISET (typ) at a VSAT of 1V.
All AS1111 versions incorporate a chip-enable feature via pin EN.
When the device...

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